John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.273
Andrew Jackson Downing, Henry Winthrop Sargent (1859). “A treatise on the theory and practice of landscape gardening, adapted to North America: with a view to the improvement of country residences”, p.318
François duc de La Rochefoucauld, Stanisław I Leszczyński (King of Poland) (1851). “Moral Reflections, Sentences and Maxims of Francis, Duc de la Rochefoucauld”, p.181